1. Introduction
Thank you for choosing the LC-dolida 3D White Noise Bluetooth Sleep Mask. This device combines a comfortable sleep mask with integrated audio features, including 16 soothing white noise sounds and Bluetooth 5.4 connectivity. It is designed to provide a total blackout environment and personalized soundscapes to enhance your sleep quality.
This manual provides detailed instructions for the safe and effective use of your sleep mask. Please read it thoroughly before use and retain it for future reference.
2. Safety Information
- Do not expose the device to extreme temperatures, direct sunlight, or moisture.
- Keep the device away from sharp objects to prevent damage to the fabric or internal components.
- Do not attempt to disassemble or repair the device yourself. Contact customer support for assistance.
- Ensure the charging cable is properly connected to prevent electrical hazards.
- Avoid using the mask while driving or operating heavy machinery, as it may impair your awareness.
- If you experience any discomfort or irritation, discontinue use.
3. Package Contents
Please check the package for the following items:
- LC-dolida 3D White Noise Bluetooth Sleep Mask
- USB Charging Cable
- Storage Bag
- Noise-Canceling Earplugs (2 pairs)
- User Manual (this document)
4. Product Overview
The LC-dolida Sleep Mask features an ergonomic design for comfort and easy-to-use controls for audio and timer functions.
Image: The LC-dolida sleep mask showing its external design with the control panel and a visual representation of its 3D contoured eye cups. A person is shown sleeping comfortably while wearing the mask.
Control Panel Layout:
- Power Button: Long press to power on/off. Short press to play/pause.
- Volume Up (+): Short press to increase volume. Long press for next track (Bluetooth mode).
- Volume Down (-): Short press to decrease volume. Long press for previous track (Bluetooth mode).
- White Noise Button: Short press to cycle through built-in white noise sounds.
- Timer Buttons (30/90/120): Press to set auto-off timer for 30, 90, or 120 minutes.
5. Setup
5.1 Initial Charge
Before first use, fully charge the sleep mask. Connect the provided USB charging cable to the mask's charging port and a USB power source (e.g., computer, wall adapter). The indicator light will show charging status (usually red while charging, off or blue when fully charged). A full charge takes approximately 1.5 hours and provides 12-15 hours of playing time.
Image: A person relaxing in a chair wearing the sleep mask, illustrating the long battery life of 15 hours after a 1.5-hour charge.
5.2 Adjusting the Fit
The mask features an adjustable strap and 3D contoured eye cups for a comfortable, pressure-free fit. Place the mask over your eyes and adjust the Velcro strap at the back of your head until it feels secure but not too tight. The 3D eye cups are designed to allow natural blinking and block out light effectively.
Image: A hand pressing into soft material, highlighting the 3D contoured design of the sleep mask's eye cups for comfort and no pressure.
Image: A person sleeping with the mask, demonstrating the 99.99% light blocking capability and ergonomic nose wing design for enhanced comfort.
6. Operating Instructions
6.1 Power On/Off
Long press the Power Button (center button) for 3 seconds to turn the mask on or off. A voice prompt will indicate "Power On" or "Power Off".
6.2 White Noise Mode
The mask has 16 built-in natural and soothing white noise tracks. To activate and cycle through them:
- Ensure the mask is powered on.
- Press the White Noise Button (usually labeled with a musical note or wave icon) to start playing the first white noise sound.
- Press the White Noise Button again to cycle to the next sound.
- Adjust volume using the + and - buttons.
Image: The sleep mask surrounded by images representing various white noise sounds like rain, birds, seagulls, waves, and fire, indicating the 16 built-in soothing tracks.
6.3 Bluetooth Music Mode
To connect to your mobile device and play your own music or audio:
- Ensure the mask is powered on and not currently playing white noise.
- The mask will automatically enter Bluetooth pairing mode (a voice prompt will say "Pairing"). The indicator light may flash blue.
- On your device, enable Bluetooth and search for "LC-dolida Sleep Mask" (or similar).
- Select the device to pair. A voice prompt will confirm "Connected".
- Once connected, you can play audio from your device.
- Use the + and - buttons for volume control. Long press + for next track, long press - for previous track.
- Short press the Power Button to play/pause music.
Image: Two individuals wearing the sleep mask, illustrating its Bluetooth 5.4 capabilities for calling, music playback, and microphone use.
6.4 Timer Function
The mask features 3 auto-off timer settings:
- Press the 30 button for a 30-minute timer.
- Press the 90 button for a 90-minute timer.
- Press the 120 button for a 120-minute timer.
The mask will automatically power off after the selected duration. To cancel the timer, press the active timer button again or power off the device manually.
Image: A couple sleeping with the masks, showing the timer function with options for 30, 60, and 90 minutes, allowing users to customize their sleep schedule.
7. Maintenance
7.1 Cleaning the Mask
The sleep mask is machine-washable after removing the electronic control module and speakers. Follow these steps:
- Locate the small opening on the inside of the mask.
- Carefully remove the control module and the two speaker units.
- Hand wash or machine wash the fabric mask in cold water on a gentle cycle.
- Air dry completely before reinserting the electronic components.
- Ensure the speakers are positioned correctly over your ears for optimal sound.
7.2 Storage
When not in use, store the sleep mask in the provided storage bag in a cool, dry place, away from direct sunlight and moisture.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Mask does not power on. | Low battery. | Charge the mask for at least 1.5 hours. |
| Cannot connect via Bluetooth. | Bluetooth not enabled on device; mask not in pairing mode; too far from device. | Ensure Bluetooth is on. Power cycle the mask to enter pairing mode. Keep device within 10 meters. |
| No sound or low volume. | Volume too low on mask or connected device; speakers misaligned. | Increase volume on both mask and device. Adjust speaker position inside the mask. |
| White noise not playing. | Mask in Bluetooth mode; white noise button not pressed. | Disconnect Bluetooth or ensure no device is connected. Press the White Noise button. |
| Timer not working. | Timer button not pressed correctly. | Ensure you press one of the 30/90/120 buttons firmly. |
9. Specifications
| Model Number | HEYE US 16BZY |
| Brand | LC-dolida |
| Bluetooth Version | 5.4 |
| Built-in Sounds | 16 White Noise Tracks |
| Battery Type | 1 Lithium Ion battery (included) |
| Charging Time | Approx. 1.5 hours |
| Playing Time | 12-15 hours |
| Material | Spandex Blend |
| Special Features | 3D Contoured, Adjustable Strap, Bluetooth, Complete Blackout, Ergonomic Design, Timer Function |
10. Warranty and Support
10.1 Warranty Information
LC-dolida products are covered by a limited warranty against defects in materials and workmanship. Please refer to the warranty card included in your package or visit the official LC-dolida website for detailed warranty terms and conditions.
This warranty does not cover damage caused by misuse, accident, unauthorized modification, or normal wear and tear.
10.2 Customer Support
If you have any questions, concerns, or require technical assistance, please contact LC-dolida customer support:
- Email: [Insert Customer Support Email Here]
- Website: LC-dolida Official Store
- Please have your model number (HEYE US 16BZY) and purchase date ready when contacting support.
